Mug or similar article



FIG. 1 is a front elevational view of a mug or similar showing my new design, the rear elevational view is a mirror image thereof;

FIG. 2 is a top view thereof.

FIG. 3 is an elevational view taken at the right side of FIG. 1.

FIG. 4 is an elevational view taken at the left side of FIG. 1.

FIG. 5 is a bottom plan view. 

The ornamental design for a mug or similar article, substantially as shown and described. 